Liquid-dispensing apparatus



May s, 192s. I 1,668,552

'- J. G. DOTY .LIQUID DIsPENsING APPARATUS Filed Jan. 8. 1926 2 Sheets-Sheet 2 Patented May 8, 1928..

UNITED STATES l 1,668,552 PATENT OFFICE.

JERALD G. DOTY, OF ST. LOUIS, MISSOURI; LELA M. DOTY, ADMINISTRATRIX OF SAIDl JERALD G. DOTY, DECEASED, ASSIGNOR TO J. G. DOTY PUMP COMPANY, OF ST.

LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

IiI12H1IID-ZDISIPEINSLNGr APPARATUS.

Appucatio'n niearauarys192s. seria1 No. 79,923.

This invention relates to liquid dispensing apparatus.

An object o1 the invention is to provide a liquid dispensing 'apparatus with equipment for -automatically controlling the amount of liquid' passing to the apparatusfor delivery therefrom. The invention shown is embodied in a liquid dispensing apparatus having a supply l0 pipe for conductingy liquid thereto and an overliow pipe for conducting liquid from the apparatus in excess of the measured amount desired. The inventionis arranged so that liquid passing through the overiow pipe M will operatemechanism to stop iiow of liquid wlth the switch members 9 and 11 to open By pushing the lever 22 in-v to the apparatus through the supply pipe.

Fig. 1 is a view showing the invention embodied in a formk to control the motor of a pump whereby delivery of liquid to a dispensing apparatus is controlled.

Fig. 2 is an enlarged plan view of the mechanism for controlling the motor.

Fig. 3 is a side elevation oit the motor controlling mechanism.. the housing' therefor being shown in section. i

The drawings exhibit so much 'of aliquidl dispensing apparatus 'as will sutice to showv the connection of the invention therewith.

A supply pipe 1 is equipped with a pump I 2 ofany known construction by operation of which liquid will be forced upwardly through the pipe 1 to a receptacle- (not, shown) from whichthe liquid is distributed.

A sprocket wheel 3 is rigid on the shaft 4 .of the pump and' is driven by a connection 5 operated by an electric motor 6. J y,

Electric wires 7 from the motor are connected tothe respective binding posts 8' (Fig. 2) each of which is in connection with acontact member 9 on a` block 10 of insulating materiall and spaced from the contact v members 11 with which the respective wires 12 are connect-ed. A lever 13 has a pair oi'v lateral 'projections 14 pivotally seating in notches 15 in arms 16 and retained in such connection bv a spring 17 connecting the lever 13 with a' lever 18 having similar 'pivotal connection 19 with the arms 16. By oscillatingthelever y18 to move the outer *.50 end thereof above or below the plane ofthe pivots-14 of the lever 13, said leer 13 will be raised or lowered by the power of the spring 17. An insulating arm 20 in connection with the free end of the lever 13 sup.`

ports a pair of switch' elements 21 for opening and closing the Acircuits from the respectivecontact members 11'of `the corresponding contact members 9 whereby the operation of the motor iscontrolled. n

A rod 22 has its outer end equipped with a handle 23 and its inner end pivoted to an upwardly extending arm of abell crank lever 24 rigid with a rocking pivot 25 extending through the wall of the housing 26 enclosing Athe switch mechanism above described and attached to the lever 18. The horizontal arm ofthe lever 24 carries a weight 27 tending to operatesaid lever in a direction to raise the switch members 21 out of contact doo position shown in Fig. 3. with the result that the switches arel closed and the motor is caused to 'operate the pump to deliver liquid to the dispensing device.

A lever` 28 pivotally supported at 29hasl litsopposite end connected to the lower end of a link device 30, the upper end of which is pivoted to an arm 31 attached to the outer end of a hinge pin 32 mounted for rocking movements in a valve chamber 33. A gate valve 34 is supported by the hinge pin 32 in the valve chamber 33. The valve cham-` ber 33 is-in connection with the overiiow pipe 35 sc 'that when the liquidoverliows from the dispensing receptacleJ (not shown) the weight ofmthe liquid in the overilow pipe will depress "and open the gate valve 34.

This raises the arm 31, the link 30 and the end of the lever 28.

The vertical arm of the lever 24 has a projection`36 'extending under the lever 28 and provided with a notch 37 vadapted to be engaged Aby 'a shoulder 38. S0, when the rod 22 is pushed inwardly the projection 36 becomes engaged with the shoulder 38 thus holding the electric switches closed. The gate valve 34 is held closed by the weight of the connections therefrom to the lever 28. When the gate valve 34 is Weighted by the overflow liquid it is thereby opened, with the result that the lever 28 is raised to disengage ,the shoulder 38 from the notch 37 whereupon the weight 27 goperates the lever 24 to open thev electric circuit switches as previously'- described. This causes the `motor and thepump to stop with the result that oisI the How of liquid to. the dispensing' device ends. i

The electric circuit Wiring is conned in tubes 39 and the other electrical connections are enclosed so that it is impossible for any liquid or other foreign substances to come into Contact with the Wiring or connections thereof. Thus all danger of short circuiting and 'coniiagration is eliminated.`

In the practical form shown and describedniy invention has metan existing need Vfor automatic control of the iiow ot liquid to the dispensing device,` so that `the entire attention of the op'e1ato1-may be devoted to other duties. This prevents loss `of time and permits service to be rendered to more patrons than is possible by use of dispensing devices requiring the attention of the operatorio the supply controlling mechanism. v

-I am aware that the construction and relationship of the parts may be varied considerably Without departure from the nature andprinciple of the invention.

What I claimuand desire to secure by Let-ters Patent is:-

1. In a liquid dispensing apparatusvthe combination with mechanism controlling- .move said device to position to cause said mechanism to stop when said element is moved by liquid passing througlrsaid pipe.

2. In a liquid dispensing apparatus. the combination with mechanism controlling fiow of liquid. anda pipe for conducting the controlled liquid` of a pivotedelelneiit in said pipe movable by the. liquid passing through said pipe. a device settable in one position to cause said mechanism to operate and in another position to cause said mechanism to stop. engaging elements holding said device in position to cause said mechanism to operate, a spring for moving said device to said tvvo positions, means perated bv said pivoted element for disengiging'said engaging elements and causing said spring to move said device to position to cause said Vmechanism to stop when said element is moved by liquid passing through said pipe, and manual means tor causing said spring to move said device to position to cause said mechanism to operate.

3. In a liquid dispensing) apparatus` the combination with mechanismy controlling flow of liquid, and a pipe for conducting the controlled liquid, of a pivoted element in said spring to move said device to position to cause said mechanism to stop when said element' is moved by liquid passing through said pipe, and manual means for causing| said spring to move said deviceto position to cause said mechanism to operate, said manualineans also moving said element to position in which it will be operated by liq-Y uid passing through said pipe.

4. In a liquid dispensing apparatus. the combination with mechanism controlling How of liquid, and a pipe for conducting the the controlled liquid, of an element `in said pipe movable to and from position to be operated by the liquid passing through said, pipe, a device settable in one position to cause said mechanian to operate and in another position to cause said mechanism to stop, engaging elements holding said device in position to cause said mechanism to operate. an actuator for moving said device to said two positions, manual means for causing said actuator to move said device to position to cause said mechanism to operate, and connections from said element for disengaging said engaging elements and permitting said actuator to move said device to position to cause said mechanism to stop when said first named element is moved by liquid flowing through said pipe.

In a liquid dispensing apparatus. the combination with mechanism controlling How of liquid, and a pipe for conducting the controlled liquid. of an element in said pipe movable b v the liquid Howing through said pipe. a machine for operating said mechanism` a device settablev in one position to cause said machine to operate and in another position to cause said machine to stop, engaging elements holding said device in p0- sition to cause said mech anism to operate` an actuator for moving said device to each of said two positions. connections operated by the liquid flowing through said pipe for disengaging said engaging elements and causing said actuator to move said device to position to cause said machine to stop` and a manipulative part causing said actuator to move saiddevice to position to cause said machine to operate.

6. In a liquid dispensing apparatus. the combination with mechanism controlling flow of liquid, and a pipe for conducting the llO controlled liquid,of anelemeit in said pipe movable by vtheY liquid flowing through said pipe, a machine for operating said mecha-v nism, a device settable-in one position to cause said machine to operate and in another position to cause said machine to Stop, v

engaging elements holding said device in position to cause said mechanism to operate,

an actuator for moving-said device toeach of said two positions, connections operated lby Vthe liquid' flowing through said pipe for disengaging 'said engaging 'elements and causin said- 'actuator Vto move lsaid device to position "to cause said machine to stop, and a manipulative part ycausing said actuator 'to move said device to position to cause said machine 7to operate and for causing said aow. f liquid, and a operated by liquid owing through said pipe, a device sett-able in one position to cause said mechanism to operate and in Aanother position to cause said mechanism t0.

stop, engaging element holding said device 30 in position to cause said mechanism to operate;y an `actuator for moving saidA device to.. each of said two positions, connections operated by saidelementwhen said element is moved by liquid flowing through said Ypipe 35 for disengaging said engaging elementsI and causing said'actuator to move said device to -position to cause said mechanism -to stop,-

and. a manipulative part forymoving said device to position vto cause said mechanism to 10 start and for movingsaid first named element to position to 'be operated byA liquid fiowingthrough said pipe.

v UE ALDG.DOTY.

pipe for conducting thecontrolled liquid, o an element in sai vpipe movable to and from position to be 25 

